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Finding the Fourth Proportional to 482,881.99, 724,329.84 and 145,925.45

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Solution

The fourth proportional to 482,881.99, 724,329.84 and 145,925.45 is: 218,890.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,881.99 : 724,329.84 = 145,925.45 : x
  2. Step 2: Convert to fraction form
    482,881.99/724,329.84 = 145,925.45/x
  3. Step 3: Cross multiply
    482,881.99x = 724,329.84 × 145,925.45
  4. Step 4: Simplify right side
    482,881.99x = 105,698,157,850.43
  5. Step 5: Solve for x
    x = 105,698,157,850.43/482,881.99
  6. Step 6: Final answer
    x = 218,890.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.